Hi TJ
you could try the left or the right signal. Th group of signals in the middle
ar the worst option. Based on intesity I would choose the right one. When
you set up the new solvent set 1.4 ppm as "lock" and 1.75 and 2.2 ppm as "signal"
This should let you lock.
It will be harder to set this up correctly for gradient shimming. the signals
are close together and not singlets. Gradient shimming can not distinguish
between multiplets and inhomogeneity. It tries to turn everything into a nice
singlet. This might broaden everything else.
Clemens
On 12/6/2023 11:01 AM, Thusitha Jayasundera via groups.io wrote:
Hello all--I have been looking into the possibility of adding methylcyclohexane
to Topspin (4.1.4) as a new solvent, and was wondering if anyone else has
achieved this successfully in the past. I am having some trouble deciding on
which peaks to include in the edlock table based on the spectrum of (protonated)
methylcyclohexane that we acquired (in CDCl3, attached) as well as the two
publications that use 1.62 and 1.19 ppm for locking (also attached). I was
hoping that someone who has worked with this solvent would have some direct
advice based on their experience.
Many thanks in advance!
TJ.
--
==========================
==========================
====================
Clemens Anklin Ph.D. Vice President
Bruker BioSpin NMR Applications & Training
15 Fortune Drive NEW Phone: 978-313-5NMR(5667)
Billerica MA 01821 twitter: _at_canklin
web: http://www.bruker.com
e-mail: clemens.anklin_at_bruker.com
==========================
==========================
====================
-=-=-=-=-=-=-=-=-=-=-=-
Groups.io Links: You receive all messages sent to this group.
View/Reply Online (#847): https://urldefense.com/v3/__https://ammrl.groups.=
io/g/main/message/847__;!!PvDODwlR4mBZyAb0!S5Jdq7MuhmeXu4ovNySGNkpiTXJFKuQy=
OqGXp8L51yWdwDtC3uE98CdQhiQH5bRGHa7M9cgkstJbVsfNK0dD0TYiEptm$
Mute This Topic: https://urldefense.com/v3/__https://groups.io/mt/103015535=
/7559972__;!!PvDODwlR4mBZyAb0!S5Jdq7MuhmeXu4ovNySGNkpiTXJFKuQyOqGXp8L51yWdw=
DtC3uE98CdQhiQH5bRGHa7M9cgkstJbVsfNK0dD0QbrpmEm$
Group Owner: main+owner_at_ammrl.groups.io
-=-=-=-=-=-=-=-=-=-=-=-
Received on Wed Dec 06 2023 - 15:12:21 MST